根据一个input的值改变另一个input的值

Posted 2020-10-23 Talk is cheap. Show me the cod

JSP中

1 <input type="text" class="form-control" id="fldy" name="fldy" placeholder="" onchange="fldychange()">

JS中

1 function fldychange(){
2     document.getElementById("fldycopy").value=document.getElementById("fldy").value;
3 }

tip：如果是label，将value改为innerText